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Low water
High water
North
Fish passes are likely to be installed as shown:The depth of fish passes will be low, in order to maintain water pressure. That certainly will impact Fish migration.The depth of OFS computerized gates will be much deeper, near generator outlets, without affecting electricity output, and fishmigration. More information will be presented at the conference. If you are the member of Mekong River, you will be contacted.
Dam’s wall
South
Fish pass #2(fixed size,
depth in white)
Gen. Wateroutlet.
Over-flow protection Over-flow protectionOver-flow protection
Over-flow protectionFish pass #1
(fixed size, depth in white)
Fish guiding
path
Over-flow protection
Gen. Water
outlet.
Gen. Wateroutlet.
By Optimum Fusion USA.Not actual design, for demo [email protected]
Fish guidingpath
Water level
Fish-passes are inadequate for Mekong Riverfor the following reasons:
1) The depth of fish passes is usually low, in order to maintain water pressure for the dam.
Once they are installed, it would be costly to remove or fix them.
2) “Fish passes” will be useless in dry seasons, as well as in high seasons, because the
average body size of Mekong fish is larger than the depth of the passes.
3) Fish passes are good for quiet rivers, such as those found in North America or Europe,
for smaller fishes. The Mekong River is the world’s strongest high volume river. Most
Mekong fishes are large and will not be able to go through the passes.
4) Evidence shows that Mekong fish are attracted to a) strong currents, b) bottom floors,
and c) mid-level for travel. Fish passes will not provide any of these environments.
5) Fish passes make it difficult for Mekong species to find migration paths (according to
biologists’ studies on HouSahong channels).
6) Fish-passes and Dam would affect 1,000 species of Mekong River, as well as 30 million
people within 15km of Mekong mainstream who dependent on fishes for livelihood.
7) If fish-passes are used, Xayaburi Dam may not be prepared to resist any future chain of
flood from upper Dam, which may result in damage to generators, flood, loss of life of
Lao PDR and Thailand citizens, including loss of electrical power.
Why Computerized Gates for Xayaburi Dam?
1) The sizes of fish gates are adjustable (programmable to control water flow). Fish gateswill be installed deep near the center of a dam; they can be as deep as 10 or 15 meters.
2) Computerized gates allow fish to pass through the barrier frequently in high season. Inlow season, one gate may be closed; other gate may be opening momentarily.
3) The depth of fish gates can be 30 times deeper than fish passes, thus matching the fish’snatural environment.
4) In dry season, computerized gates will allow fishes to pass momentarily. If upper Dams
fail, fish Gates will be opened in advance to release water pressure, to protect Xayaburi Dam,
from collapsing.
5) Computerized gates will provide a channel-like environment, similar to the naturalHouSahong channels. This can release some pressures off Xayaburi Dam, to prolong itslife a bit longer.
6) A controlling computer will balance the needs of the dam and fish equally, by monitoringthe depth of water and adjusting the flow accordingly. Computerized gates are the onlysolution to the quick change environment of the Mekong River.
7) Computerized Gates not only will save fish migration, they could save Xayaburi Damfrom future damage and catastrophe from upper Dam, as well as people below it.
8) OFS understands the force of Mekong River well, with 30 years of experience inindustrial controls and machinery. It will provide qualified engineers to support thisproject.
If any upper dam fails, Xayaburi dam wouldreceive excessive water quickly. Without fishgates, dam may leak, collapse, and/or flood LaoPDR and Thailand
With computerizedgates,
A set of sensors would pickup signaldrain water off by half
to release water pressure, to stop the deadlyflood and water leak into generators.
.
Catastrophe prevention:Xayaburi dam and region below it could
be saved.1-2 hours in advance, to
1,000 Dams in US needed a major repair.(10% is impending to collapse. 90% repair would be unreliable repair)
How computerized fish-gates can save Xayaburi dam in the future
In August 2009,waterleakdestroyedRussianbiggest powerhouse, bringing76 deaths with$800M indamage.
Area that could be affected by flood if Fish-Gates were not used.
HALF-open Gate FULL-open Gate
Fish Gates will be made of high qualityTitanium and Tungsten materials.They are 3.6 to 5 times stronger thanregular steel.
These material are anti-corrosivematerials, withstanding acid rain andextreme force, they can be submergedin water without getting rust.
They are best for moving-partapplications such Airplanes, Dams,and other heavy structures. Not allcomponents are showing here.
Drawing of mounting position on theDam available for customers only.
Openingdirection
Openingdirection
For inquiry, please contact:Optimum Fusion’s manager at:[email protected]
Property of
@OptimumFusion.com
Optimum Fusion. July2012. Patent Pending.
Optimum Fusion consults and
designs industrial controls for
factory automation, Dam
automation, Wind farm,
conveyors controls, Robot
programming's, High power
Energy Storage design, Custom
generators, 50-5000 MW DC-AC
converters, large servo motors,
superconducting wiring, long
lasting battery technology, and
more.
Our engineers come from
Boeing Aerospace, Siemens,
Mannesmann, and other
respectable Companies.
About OFS:
The sliding positionto support small fishesfirst, large fishes last.
